PROCESS FOR MAKING SI-H FUNCTIONAL SILOXANE OLIGOMER
    2.
    发明申请
    PROCESS FOR MAKING SI-H FUNCTIONAL SILOXANE OLIGOMER 审中-公开
    制备SI-H官能硅氧烷低聚物的方法

    公开(公告)号:WO2006115788A3

    公开(公告)日:2006-12-21

    申请号:PCT/US2006013680

    申请日:2006-04-12

    CPC classification number: C07F7/0867 C07F7/0874

    Abstract: The present invention relates to a method of making a Si-H functional siloxane oligomer from the reaction between silicon hydride compounds and cyclic siloxane oligomer in the presence of a Lewis acid that is capable of interacting with the hydrogen of the silicon hydride to promote ring opening of the cyclic siloxane oligomer and the insertion a siloxane oligomer segment between Si and H atom to thereby form the Si-H functional siloxane oligomer.

    Abstract translation: 本发明涉及在路易斯酸存在下由氢化硅化合物与环状硅氧烷低聚物之间的反应制备Si-H官能硅氧烷低聚物的方法,所述路易斯酸能够与氢化硅的氢相互作用以促进开环 的环状硅氧烷低聚物和在Si和H原子之间插入硅氧烷低聚物链段,从而形成Si-H官能的硅氧烷低聚物。

    PROCESS FOR MAKING SILANOL STOPPED OLIGOMERIC MATERIALS
    3.
    发明申请
    PROCESS FOR MAKING SILANOL STOPPED OLIGOMERIC MATERIALS 审中-公开
    制备硅烷醇停止的低密度材料的方法

    公开(公告)号:WO02092607A8

    公开(公告)日:2004-07-15

    申请号:PCT/US0222501

    申请日:2002-01-23

    Applicant: GEN ELECTRIC

    CPC classification number: C07F7/0876

    Abstract: A process for the production of linear Silanol stopped siloxanes comprising: a) conducting a ring opening polymerization of a hexaorganocyclotrisiloxane having the formula: D3 = (R R SiO)3 where R and R are independently selected from the group of one to forty carbon atom monovalent radicals, in a solvent comprising a mixture of water and a volatile polar aprotic organic solvent in the presence of catalytic amounts of a strong base; b) neutralizing the catalytic amount of the strong base with a partially neutralized salt of a polybasic acid wherein the pH ranges from about 6 to about 8; and c) washing with water.

    Abstract translation: 一种制备线性硅烷醇封端硅氧烷的方法,包括:a)进行具有下式的六有机基三硅氧烷的开环聚合:D3 =(R 1 R 2 SiO)3,其中R 1和R 2均为 在含有水和挥发性极性非质子有机溶剂的混合物的溶剂中,在催化量的强碱存在下,独立地选自一至四十个碳原子的单价基团; b)用多碱的部分中和盐中和强碱的催化量,其中pH范围为约6至约8; 和c)用水洗涤。

    METHOD FOR IMPARTING LOW COMPRESSION SET TO LIQUID INJECTION-MOLDABLE SILICONE ELASTOMER

    公开(公告)号:JPH11246766A

    公开(公告)日:1999-09-14

    申请号:JP36364598

    申请日:1998-12-22

    Applicant: GEN ELECTRIC

    Abstract: PROBLEM TO BE SOLVED: To obtain a curable silicone elastomer composition which can give a cured product reduced in compression set by adding a salt of a cationic organonitrogen compound to a silicone composition suited for the production of a rollable rubber or pumpable liquid injection-moldable composition. SOLUTION: Desirably this composition contains (1) an alkenylorganopolysiloxane and (2) a hydrogen-containing silicon compound selected from the group consisting of hydrogen-containing silanes and hydrogen- containing organopolysiloxanes. The salt of the cationic organonitrogen compound is desirably, for example, a cation of a cycloaliphatic nitrogen-containing heterocyclic ring having the formula: (CH2-e Qe )f NRN g H2-g [wherein e is 0, 1, or 2; Q is a 1-40 monovalent organic group; f is an integer of 4 or greater; RN is a 1-40C monovalent organic group; and g is 0, 1, or 2].

    PRIMERLESSLY BONDABLE LIQUID INJECTION-MOLDABLE SILICONE ELASTOMER

    公开(公告)号:JPH11246765A

    公开(公告)日:1999-09-14

    申请号:JP36364498

    申请日:1998-12-22

    Applicant: GEN ELECTRIC

    Abstract: PROBLEM TO BE SOLVED: To obtain a silicone elastomer which can give a cured product reduced in compression set by adding a salt of a cationic organonitrogen compound to a silicone composition suited for the production of a liquid injection-moldable composition. SOLUTION: This composition contains the following four components: (1) a silicone elastomer, (2) a salt of a cationic organonitrogen compound, (3) bis(trimethoxysilylpropyl) fumarate, and (4) a silanol-terminated polymer represented by the formula (wherein RA , RA , RA , and RA are each independently a 1-40C monovalent organic group; RA is a 2-40C monovalent olefinic organic group; y' is 0 to about 50; x' is 0 or 1 to about 100; and the alkenyl content ranges from 0 in the case of y'=0 to about 25 wt.%, in the case of y'>0). When this composition is bonded to a substrate comprising a thermosetting polymer or a thermoplastic polymer, components (3) and (4) function as an adhesion promoter system.

    LIQUID INJECTION-MOLDABLE SILICONE ELASTOMER REDUCED IN COMPRESSION SET

    公开(公告)号:JPH11246764A

    公开(公告)日:1999-09-14

    申请号:JP36364398

    申请日:1998-12-22

    Applicant: GEN ELECTRIC

    Abstract: PROBLEM TO BE SOLVED: To obtain a silicone elastomer composition which can give a cured product reduced in compression set by adding a salt of a cationic organonitrogen compound to a silicone composition suited for the production of a rollable rubber or pumpable liquid injection-moldable composition. SOLUTION: Desirably, the curable silicone elastomer used in the curable silicone elastomer composition contains a hydrogen-containing silicon compound selected from the group consisting of (1) alkenylorganopolysiloxanes and (2) hydrogen-containing silanes and hydrogen-containing organopolysiloxanes. The salt of the cationic organonitrogen compound is desirably, for example, a nitrogen compound containing a monovalent cation having the following formula: RN a RN b RN c RN d N (wherein RN is selected from the group consisting of hydrogen and 1-40C monovalent organic groups; RN to RN are each independently selected from the group consisting of 1-40C monovalent organic groups; a is 0-3; b, c, and d are each independently 0-4; and the sum of a to d is always 4).

    NEUTRAL CURING ONE-COMPONENT ROOM-TEMPERATURE-VULCANIZABLE SILICONE COMPOSITION

    公开(公告)号:JPH11193348A

    公开(公告)日:1999-07-21

    申请号:JP27685998

    申请日:1998-09-30

    Applicant: GEN ELECTRIC

    Abstract: PROBLEM TO BE SOLVED: To obtain a silicone composition having improved noncorrosiveness to copper alloys by mixing a polyalkoxyl-terminated polydiorganosiloxane with a silica filler, a tin condensation/curing catalyst, a silicone functionalized with 1-silaazacyclopentane, etc. SOLUTION: This composition is obtained by mixing 100 pts.wt. polyalkoxyl- terminated polydiorganosiloxane of formula I with 5-40 pts.wt. reinforcing fumed or pyrocysis silica filler, 0-40 pts.wt. triorganosilyl-terminated polydiorganisiloxane of formula II, 0-5 pts.wt. polyalkoxysilane crosslinking agent of formula II, 0-2 pts.wt. cyano-functional silane of formula IV, 0.25 pts.wt. MDT silanol fluid comprising 1-80 mol.% monoorganosiloxy units of formula V, 0.5-50 mol.% triorganosiloxy units of formula VI, 1-80 mol.% diorganosiloxy units of formula VII, etc., 0.1-1.0 pt.wt. tin condensation/curing catalyst, and 2.5-10 pts.wt. monovalent 1-silaazacyclopentane-functionalized silicone of formula VIII.

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